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对从北京市怀柔县、密云县,辽宁省建昌县山区引来的300余株欧李进行了两年观察,结果表明,所引进的群体中,明显的存在着3种不同的类群,即扁果类群、圆果类群和长果类群。其中扁果类群为优良类群,果个最大,着色最早,色泽鲜红,果肉离核,可食部分最多,可溶性固形物含量较高,酸甜可口,浓郁芳香,既可鲜食又可加工。 欧李耐寒、耐旱、耐瘠薄土壤,对病虫害的抵抗力很强。扁果类群具丰产性,可适量发展。欧李植株矮小,红果绿叶,既可作盆景观赏,又可作庭院绿化,以扁果类群为佳。
Two years of observation of more than 300 strains of European plums from Huairou County, Miyun County, Liaoning Province and Jianchang County in Liaoning Province showed that there were three distinct groups in the introduced groups, namely Bony fruit group, round fruit group and long fruit group. Among them, Borago group is the best group, with the largest fruit, the earliest coloration, the bright red color, the flesh is away from the nucleus, the edible part is the most, the content of soluble solid is higher, the sour, sweet and delicious, the rich aroma can be fresh and processed. European Li cold hardy, drought-tolerant, barren soil, strong resistance to pests. Bian fruit group with high yield, suitable for development. European plum plants short, green leaves, both for bonsai ornamental, but also for the garden afforestation to flat fruit groups better.